JPH08179657A - Image forming device - Google Patents

Abstract

PURPOSE: To select only an operation desired by a user to be stopped in a state where the user simultaneously executes an original image input operation and an image printing operation. CONSTITUTION: A central control circuit 2 reads the image information of an original in an image input device 10 by pressing the start key of a keyboard/ display device 3, executes an original image input operation for storing image information read into an image storing device 4 and after reading of the original is finished, reads the image information stored in the image storing device 4 and executes an image printing operation for printing the image by an image printing device 20. In this case, the original image input operation of the image input device 10 is stopped by an originnal input stop key 7b and the image information stored in the image storing device 4 is eliminated and during the image printing operation of the image printing device 20, printing of the image is suspended by pressing of a copy stop key 7a and the image information stored in the image storing device 4 is eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document image input operation for reading an image of a document and temporarily storing the read document image in a storage device, and an image forming an image by reading image information in the storage device. The present invention relates to an image forming apparatus such as a copying machine capable of simultaneously performing a forming operation.

[0002]

2. Description of the Related Art Conventionally, a document image input operation of reading an image of a document and temporarily storing the read document image in a storage device, and an image forming operation of reading image information in the storage device to form an image are performed simultaneously. An image forming apparatus such as a copying machine that can be executed has been put into practical use.

In such a copying machine, a user simultaneously executes a document image input operation, which is a series of operations for storing document image information, and an image forming operation for forming an image from the image information stored in the storage device. While doing so, even if the user wishes to cancel only one operation, for example, if he / she discovers a setting mistake on the way, both operations have been canceled when the cancel key is pressed.

[0004]

As described above, a document image input operation of reading an image of a document and temporarily storing the read document image in a storage device, and reading image information in the storage device to form an image. In an image forming apparatus such as a copying machine capable of simultaneously performing the image forming operation to be performed, a document image input operation, which is a series of operations by which a user stores document image information, and an image information stored in the storage device. When both the image forming operation to form an image and the image forming operation are being executed at the same time and the user wishes to select and stop only the desired operation, both operations will be stopped. There was a problem that the loss was large.

Therefore, according to the present invention, when the user is simultaneously performing the original image input operation and the image forming operation,
An object of the present invention is to provide an image forming apparatus in which only the operation desired by the user can be selected and stopped.

[0006]

An image forming apparatus according to the present invention comprises a reading means for reading an image on a document to generate an image signal, a storage means for storing the image signal generated by the reading means, and a storage means for storing the image signal. An image forming means for forming an image on an image carrier according to an image signal stored in a storage means, and a reading operation in a series of operations from the reading operation by the reading means to the image forming operation of the image forming means. A control unit that operates so as to include a state in which the image forming operation is simultaneously executed, and any one of the reading operation and the image forming operation while the reading operation and the image forming operation are simultaneously executed by the control unit. It is composed of means for stopping only one of them.

In the image forming apparatus of the present invention, reading means for reading an image on a document to generate an image signal, storage means for storing the image signal generated by the reading means, and storage means for storing the image signal. In a series of operations from an image forming means for forming an image on an image carrier according to an image signal and a reading operation by the reading means to an image forming operation of the image forming means, the reading operation and the image forming operation are simultaneously performed. The control unit is configured to operate so as to include the state to be executed, the first stopping unit that stops only the reading operation, and the second stopping unit that stops only the image forming operation.

In the image forming apparatus of the present invention, reading means for reading an image on a document to generate an image signal, storage means for storing the image signal generated by the reading means, and storage means for storing the image signal. In a series of operations from an image forming means for forming an image on an image carrier according to an image signal and a reading operation by the reading means to an image forming operation of the image forming means, the reading operation and the image forming operation are simultaneously performed. A control unit that operates so as to include a state to be executed, a first stopping unit that stops the reading operation, a second stopping unit that stops the image forming operation, and an image forming by the second stopping unit. When the operation is stopped, or when the reading operation is stopped by the first stopping unit, the deleting unit deletes the image information stored in the storage unit.

An image forming apparatus of the present invention stores an image input device for reading an image of a document, an image storage device for storing image information read by the image input device, and an image information stored in the image storage device. An image printing device for reading and printing an image, a copy cancel key for canceling the image printing operation of the image printing device, an original input stop key for stopping the reading operation of the image input device, and the original input stop key are pressed. When the copy stop key is pressed, the reading operation of the image input device is stopped, and the image information read by the image input device stored in the image storage device is deleted. Central control circuit for controlling the image printing operation of the apparatus and deleting the read image information from the image storage apparatus for printing the image by the image printing apparatus It is constructed from.

According to the image forming method of the present invention, an image of a document is read to generate an image signal, the generated image signal is stored, and an image is formed on an image carrier according to the stored image signal. In a series of operations from the reading operation of reading the image of the document to generate the image signal to the image forming operation of forming the image in accordance with the image signal, the state in which the reading operation and the image forming operation are simultaneously executed is And a step of stopping only one of the reading operation and the image forming operation while the reading operation and the image forming operation are simultaneously executed.

[0011]

According to the present invention, the image of the original is read, the image signal is generated by the reading means, the generated image signal is stored, and the image is formed on the image carrier by the image forming means according to the stored image signal. Then, in the series of operations from the reading operation by the reading unit to the image forming operation of the image forming unit, the reading operation and the image forming operation are performed at the same time. Only one of the reading operation and the image forming operation is stopped while the image forming operation is simultaneously executed.

According to the present invention, the image of the original is read, the image signal is generated by the reading means, and the generated image signal is stored,
An image is formed on the image carrier by the image forming means according to the stored image signal, and in a series of operations from the reading operation by the reading means to the image forming operation of the image forming means,
The reading operation and the image forming operation are performed at the same time, and the reading operation is stopped.
Alternatively, only the image forming operation is stopped.

According to the present invention, the image of the original is read, the image signal is generated by the reading means, the generated image signal is stored in the storage means, and the image is formed on the image carrier according to the stored image signal. And a reading operation and an image forming operation are simultaneously performed in a series of operations from the reading operation by the reading means to the image forming operation of the image forming means. The image information stored in the storage means is deleted when the operation is stopped or the image forming operation is stopped, and when the image forming operation is stopped or the reading operation is stopped.

According to the present invention, the image of the original is read by the image input device, the read image information is stored in the image storage device,
The stored image information is read and the image is printed by the image printing device, the image printing operation is stopped by the copy stop key, the reading operation of the image input device is stopped by the original input stop key, and the original input stop key is pressed. When pressed, the reading operation of the image input device is stopped and the image information read by the image input device stored in the image storage device is deleted, and when the copy stop key is pressed, the image The control is performed such that the image printing operation of the printing device is stopped and the read image information for printing the image by the image printing device is deleted from the image storage device.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of the image forming apparatus of the present invention. That is, the image forming apparatus 1
Is a central control circuit 2 that controls the overall control, a keyboard / display device 3 for inputting operations, an image input device 10 as a reading means for optically reading image information of an original, and an output from this image input device 10. The image storage device 4 as a storage means such as a page memory for storing (storing) image information to be recorded, and the image information stored in the image storage device 4 is read to print an image on a recording material, that is, a copy sheet. And an image printing device 20 as an image forming means.

FIG. 2 is a schematic configuration diagram showing the internal structure of the image forming apparatus 1. The image input device 10 is mounted on the document mounting table 12 on which a document O to be copied is mounted, an openable and closable document cover 13 for pressing the document mounted on the document mounting table 12, and the document mounting table 12. Light source 14 for illuminating the original O, this light source
C for converting the reflected light into an image information signal by photoelectrically converting the reflected light from the original O illuminated via 14
It has a CD sensor 16.

A reflector 15 for efficiently focusing the illumination light from the light source 14 on the original O is arranged beside the light source 14. Also, the light source 14 and the C
Between the CD sensor 16 and a plurality of mirrors 17, 18, 19 for bending an optical path through which the light traveling from the original O to the CCD sensor 16, that is, the reflected light from the original O passes, and the reflection. A lens unit 11 and the like for focusing the light on the light collecting surface of the CCD sensor 16 are arranged.

The original O placed on the original table 12 has a scanning system consisting of a light source 14 and mirrors 17 to 19 along the lower surface of the original table 12 in the direction of arrow a (sub scanning direction).
By reciprocating, the exposure scanning is performed during the reciprocation. In this case, the mirrors 18 and 19 are designed to move at half the speed of the mirror 17 so as to maintain the optical path length. The CCD sensor 16 scans the original image along the main scanning direction substantially orthogonal to the sub-scanning direction and outputs the density signal for each pixel.

The reflected light from the original by the scanning of the scanning system, that is, the reflected light from the original O by the light irradiation of the light source 14 is reflected by the mirrors 17 to 19 and then passes through the lens unit 11 and the CCD sensor 16. Image of the original O is guided to C
An image is formed on the light receiving surface of the CD sensor 16.

The light source 14, the reflector 15, and the mirror 17 are provided on the first carriage 21, and the mirrors 18 and 19 are provided on the second carriage 22.
Each of 22 is moved by a motor (not shown).

The image printing device 20 has a cylindrical shape,
A photoelectric conversion element that is formed rotatably in a desired direction via a motor (not shown), is charged to a desired potential, and changes the potential of a region irradiated with the light beam by being irradiated with the light beam, that is, It has a photosensitive drum 23.

Around the photosensitive drum 23, a charging device 24 for applying a desired electric potential to the photosensitive drum 23, and image information from the image storage device 4, that is, to the photosensitive drum 23,
A laser unit 26 that outputs a laser beam that is turned on / off in accordance with image information to be copied or output, and a visualization agent on the electrostatic latent image formed on the photoconductor drum 23 by the laser beam from the laser unit 26. That is, the developing device 28 that develops by supplying toner via the developing roller 27, and the toner image on the photosensitive drum 23 developed by the developing device 28 are composed of a cassette or the like described later. A transfer device 30 for transferring a recording material fed from a paper feeding unit 34, that is, a copy paper P, a peeling device 31 for peeling the paper adsorbed on the photosensitive drum 23, and the like are sequentially arranged.

Incidentally, the toner remaining on the surface of the photoconductor drum 23 is removed around the photoconductor drum 23 and downstream of the peeling device 31, and the photoconductor drum 23 is removed by the laser beam. A cleaner unit 32 for erasing a change in potential generated above by using a cleaning blade 25 for the next image formation, and a photosensitive drum 23.
Static elimination lamp 3 that erases the upper potential for the next image formation
3 are arranged in order.

The laser unit 26 is a semiconductor laser 26.
A polygon mirror 26c rotated by a mirror motor 26b corresponding to a, an fθ lens 26d, and a folding mirror 26e are arranged to irradiate the photosensitive drum 23 with a light beam.

Between the developing device 28 and the transfer device 30, a copy sheet P for transferring the toner image formed on the photosensitive drum 23 is fed toward the transfer device 30. A paper feed unit 34 is arranged.

The copy sheet P taken out from the sheet feeding section 34 by the sheet feeding roller 35 is conveyed by the conveying roller pair 36 and guided to the aligning roller pair 37, and is transferred to the photosensitive drum 23 by the aligning roller pair 37. The toner image on the photoconductor drum 23 is transferred to the copy paper P by the transfer device 30 while being guided while being guided to the transfer device 30 disposed opposite to the transfer device 30.

A pre-aligning switch 37s is provided immediately in front of the aligning roller pair 37 in the transport direction of the copy paper P transported by the transport roller pair 36.
The pre-aligning switch 37s detects the copy sheet P being conveyed. After the pre-aligning switch 37s is turned on, the aligning roller pair 37 is stopped for a predetermined time and the leading edge of the copy sheet P is aligned, and then the aligning roller pair 37 forms the developed image on the photosensitive drum 23. The copy sheet P is conveyed so as to match the leading edge of the sheet.

Further, in the direction subsequent to the transfer device 30 and in the direction in which the copy paper P on which the toner image is transferred via the transfer device 30 is separated from the photoconductor drum 23, the copy paper P is transferred. A fixing device 38 for fixing the toner image,
Further, a pair of transport rollers 36 is disposed between the fixing device 38 and the transfer device 30 to transport the copy paper P toward the fixing device 38.

The fixing device 38 is provided with a heating roller 38a and a pressure roller 38b, and heats and pressurizes the toner image on the copy paper P to fix it. Further, the paper on which the toner image is fixed by the fixing device 38 is discharged to the paper discharge tray 43 by the paper discharge roller pair 42.

FIG. 3 shows a schematic structure of the keyboard / display device 3, which includes a ten-key pad 5, a start key 6, an input device 7, a clear / stop key 51, and a zoom key 5.
2, function key 53, help key 54, timer key 55, preheat key 56, interrupt key 57, density setting key 58, automatic exposure key 59, cassette selection key 6
0, a sorter key 61, a counter key 62, a paper selection key 63, and a magnification selection key 64. The keyboard / display device 3 is arranged in either the image forming device 1, that is, the image input device 10 or the image printing device 20.

The numeric keypad 5 is a key for inputting a number for setting the number of copies. The start key 6 is a key for inputting the start of copying. The input device 7 is provided with a transparent touch sensor panel on the screen of the liquid crystal display, and performs various displayed inputs.

The clear / stop key 51 is a key for clearing the setting input and stopping the copying operation.
The zoom key 52 is a key for setting the magnification from 100% to 25% reduction and 800% enlargement.

The function key 53 is a key to be used when the function hierarchy is set to the highest level with all clear. The help key 54 is a key used when confirming the function.

The timer key 55 is a key used when setting a weekly timer. The preheat key 56 is
This key is used when setting the preheat of the image forming apparatus 1.

The interrupt key 57 is a key used when setting an interrupt during the copying operation. Concentration setting key 5
A key 8 is used to "lighten" or "soften" the set density.

The automatic exposure key 59 is a key used when automatically adjusting the exposure. Cassette selection key 60
Is a key for selecting a plurality of cassettes (not shown) in which copy sheets P are set.

The sorter key 61 is a key for setting a sorter (not shown). The counter key 62 is a key for setting the count number of the total number of copies. Paper selection key 63
Is a mode key for selecting the paper size.

The magnification selection key 64 is a mode key for selecting the magnification. A document cover 13 for placing the document O in close contact with the document placing table 12 is arranged above the document placing table 12. The document cover 13 can be replaced with, for example, an ADF, that is, an automatic document feeder according to the size of the image forming apparatus 1 or the copying capability.

FIG. 4 shows a schematic structure of the automatic document feeder. The automatic document feeding device 70 is provided on the document placing table 12, and the automatic document feeding device 70 moves the document placing table 12 from the automatic document feeding device 70.
The original O is sent to the.

The automatic document feeder 70 is unitized, and a rear end edge portion of a cover body 71 as a casing thereof is attached to the upper rear end edge portion of the apparatus body so as to be openable and closable via a hinge device (not shown). And, if necessary, the automatic document feeder 70
The entire document table 12 can be opened by rotationally displacing it.

As shown in FIG. 4, a document feeding table 72 capable of holding a plurality of documents O at a time is provided on the upper surface of the cover main body 71 slightly to the left. In this case, the originals O are placed in order on the original feeding table with the image forming surface facing upward and the first sheet facing upward.
Mounted on 72. Then, the originals O held with the image forming surface upward by the original feeding table 72 are sequentially taken out one by one from the lower side and supplied to one end side (the left end side in the drawing) of the original placing table 12. A sending means 73 is provided. The feeding means 73 is configured as follows.

That is, the document stopper 12 is arranged along the lower edge of the document feeding table 72 and the left edge of the document table 12.
A sheet feeding path 75 having a horizontal U shape so as to communicate with the upper surface of a
Is provided to guide the document O so that the document forming surface faces down. A pickup roller 77 for taking out the original O, a weight plate 78 for pressing the original O against the pickup roller 77, and a setting state of the original O on the original feeding table 72 are detected at an upstream portion of the paper feeding path 75. An empty sensor 79 as a document detection sensor is provided. Further, a paper feed roller 81 is arranged in the original taking-out direction of the pickup roller 77 so that the originals O are surely fed one by one. Further, an aligning roller 84 as a registration roller pair and a feeding rotating body 85 for correcting the inclination (skew) of the original O and aiming the feeding timing are disposed downstream of the sheet feeding path 75. At the same time, a registration sensor 86 is provided in front of the aligning roller 84 to detect the document O and adjust the operation timing of the aligning roller 84 and the feeding rotary member 85. The feeding rotator 85 has a built-in detection unit (not shown) for detecting the double feeding (overlapping conveyance) of the document O and the conveyance state of the document O such as the size and skew.

On the upper surface of the document placing table 12, a document conveying belt 87 that covers the document placing table 12 is stretched. And the feeding means
The document O fed by 73 is conveyed from one end side (left end side) of the document placing table 12 to the other end side (right end side). For the document O, a sheet discharging unit provided on the right side portion of the cover body 71
The paper receiving portion 89 formed on the upper surface of the cover body 71 by the 88.
Is discharged to.

The original conveying belt 87 is a pair of belt rollers.
The outer surface of 90, 90 is made of a white wide endless belt and is configured to be able to run in both forward and reverse directions by a belt drive mechanism (not shown). Also, the document transport belt 87
A plurality of belt pressing rollers 91 for pressing the belt surface onto the document table 12 and a set switch for detecting the open / closed state of the automatic document feeder are provided on the rear surface side of the inner peripheral portion of the document.
92 is provided.

The paper discharging means 88 is constructed as follows. A horizontal U-shaped document discharge path 93 is provided so as to connect the right end edge of the document placing table 12 and the discharge receiving portion 89, and the document O is inverted and discharged so that the document forming surface faces up. It has become. At the midstream portion of the document discharge path 93, the transport roller 94
And a pinch roller that presses the document O against the transport roller 94.
95, and a paper ejection sensor 96 as a document detection unit for detecting the trailing edge of the document O fed in the paper ejection direction. A paper discharge roller 98 is disposed downstream of the document discharge path 93.

FIG. 5 shows a display example of various operation keys input from the input device 7. The magnification, the number of sheets, the remaining amount of paper,
And displaying the remaining memory capacity of the image storage device 4,
Four mode selection keys of basic, editing, adjustment setting, and composite editing are set and displayed.

In this embodiment, the basic mode is selected, and the copy stop key 7a, the document input stop key 7b, the cancel key 7c, and the end key 7d are set and displayed. Depressing the copy cancel key 7a means canceling the job currently being printed by the image printing device 20, and cancels the printing operation and deletes the image information related to this job stored in the image storage device 4.

Depressing the original input stop key 7b means stopping the job of which the original is currently being input by the image input device 10. The image input operation is stopped, and the image information related to this job stored in the image storage device 4 is stopped. To delete.

Next, a document image input operation and an image printing operation in the image forming apparatus 1 of this embodiment will be described. The document image input operation indicates a series of operations in which the document is read by the image input device 10 and the read image information is accumulated in the image storage device 4. First, a document is placed on the document table 12 and the start key 6 is pressed. When the start key 6 is pressed, the central control circuit 2 converts the image information obtained by reading the original document by the image input device 10 into a digital signal, which is transferred to the image storage device 4 and stored therein. When there are a plurality of originals, this operation is repeated to store a plurality of image information in the image storage device 4.

In the image printing operation, when the document image input operation is completed, the end key 7d of the input device 7 is pressed, the central control circuit 2 reads out the image information stored in the image storage device 4, and stores it. The image is printed on the recording paper by the image printing device 20 in the order in which they are printed. If the number of copies to be printed for one document image information is designated, printing is performed as many times as the designated number of copies for one document image information. Further, the central control circuit 2 controls to start the image printing operation even if the end key 7d is not pressed when the image input of the original is performed using the automatic document feeder 70.

The user performs the above-mentioned document image input operation,
Subsequently, copying is realized by causing the image forming apparatus 1 to execute an image printing operation. Further, if there is an extra free space in the image storage device 4 at the end of the manuscript image input operation, the central control circuit 2 performs the image even when the image printing device 20 of the image forming apparatus 1 is performing the manuscript printing operation. The input device 10 is controlled so that it can be used. That is, even when the image printing operation is started, the work efficiency can be increased by permitting the original image input operation for the next new original.

Next, the functions of the original input stop key 7b and the copy stop key 7a in this embodiment will be described. First, when the document image input operation is performed without using the automatic document feeder 70, pressing the end key 7d as described above means moving to the start of the next image printing operation.
If the manuscript input stop key 7b is pressed without pressing the end key 7d, the central control circuit 2 returns to the state before starting the manuscript image input operation again without starting the next image printing operation. Control to go back. At the same time, the image information accumulated in the image storage device 4 by the last original image input operation is also deleted. Here, when deleting the accumulated image information, it may be displayed on the input device 7 as “Are you sure you want to delete the image information?” And inquire of the user.

When the document input stop key 7b is pressed while performing the document image input operation using the automatic document feeder 70, the central control circuit 2 stops the operation of the automatic document feeder 70 and The image information accumulated in the image storage device 4 is deleted, and control is performed to return to the state before starting the original image input operation again. In this way, when the original input stop key 7b for stopping the original input is pressed, the image information accumulated in the image storage device 4 is also deleted at the same time. This is because it is supposed to cancel the work. The purpose of the user pressing the original input stop key 7b is to
For example, the image information accumulated in the already input document may be canceled and another document may be input again.

When the copy stop key 7a is pressed in the state where the image printing operation is started, the printing operation is stopped and the image information stored in the image storage device 4 which is the target of the printing operation is deleted. At the same time image storage device 4
The reason why the image information accumulated in the above is also deleted is that the "stop" here is to cancel the original image input operation and the image print operation. The user selects this copy stop key 7a
The purpose of pressing is to find a defect such that the image information that has begun to be printed is not copied at the desired magnification, or is not copied to the desired recording paper, and you do not want to print any more. There is.

FIG. 6 shows a time chart of the document image input operation and the image printing operation. When the next document image input operation 2 is carried out in the image printing operation 1, the image printing operation and the document image are performed. The input operation is being executed simultaneously. When the copy stop key 7a is pressed at this time, if the automatic document feeder 70 is not used, only the image information stored in the image storage device 4 by the last original image input operation is deleted and the stored image information is stored. Do not enter image printing operation with image information. When the document image input operation is executed by using the automatic document feeder 70, the operation of the automatic document feeder 70 is stopped and only the image information stored in the image storage device 4 is deleted. Do not enter the image printing operation with the image information.

When the copy stop key 7a is pressed while the image printing operation and the original image input operation are being executed at the same time, the printing operation currently being executed is stopped and the image storage device 4 which is the object of printing. Delete only the image information stored in.

On the other hand, as in the conventional case, the keyboard /
If there is only one operation stop key on the display device 3, both the image printing operation and the document image input operation are interrupted, and all the image information stored in the image storage device 4 is deleted.

Next, the original image input operation and the image printing operation in the image forming apparatus 1 having such a configuration will be described with reference to the flowcharts of FIGS. 7 and 8. First, the operation procedure when the automatic document feeder 70 is not used will be described with reference to the flowchart in FIG.

A document is placed on the document table 12 (step ST1), and the start key 6 of the keyboard / display device 3 is pressed (step ST2). When the start key 6 is pressed, the central control circuit 2 causes the image input device 10 to input a document image and stores image information in the image storage device 4 (step ST3). To cancel the original image input here, by pressing the original input stop key 7b (step ST4), the operation being input by the image input device 10 is stopped, and the image information stored in the image storage device 4 is saved. It is deleted (step ST5).

If there is the next document (step ST6), the process returns to step ST1, the next document is placed on the document table 12 and the start key 6 is pressed, so that the central control circuit 2 causes the image input device to operate. At 10 the original image is input and the image information is stored in the image storage device 4.

When the input of the original is completed, the end key 7
d is input (step ST7). Central control circuit 2
When the end key 7d is pressed, the image printing device 20 executes the image printing operation of the image information stored in the image storage device 4 (step ST8). Here, when the copy stop key 7a is pressed (step ST9), the central control circuit 2 stops the printing operation of the image printing device 20 and is stored in the image storage device 4 which is the target of the printing operation. The image information is deleted (step ST10).

If the image printing operation continues, step ST8
Return to, and if finished, end (step ST11).
Next, the operation procedure when using the automatic document feeder 70 will be described with reference to the flowchart in FIG.

A document is placed on the automatic document feeder 70 provided on the document table 12 (step ST21), and the start key 6 of the keyboard / display device 3 is pressed (step ST22). If the original input stop key 7b is pressed (step ST23), the central control circuit 2 stops the operation being input by the image input device 10, and the image storage device 4 is stopped.
Delete the image information stored in (step ST2
4).

In the central control circuit 2, when the start key 6 is pressed, the image input device 10 causes the automatic document feeder 70 to operate.
The original image input of the original placed on the original is executed to store the image information in the image storage device 4, and when the input of the original image is completed, the image information stored in the image storage device 4 is automatically transferred to the image printing device 20. Image printing operation is executed (step ST2
5).

When the copy stop key 7a is pressed while the image printing device 20 is executing the image printing operation (step ST26), the central control circuit 2 stops the printing operation of the image printing device 20 and prints. The image information accumulated in the image storage device 4 which is the target of the operation is deleted (step ST27).

If the image printing operation continues, step ST2
Return to step 5, and if finished, end (step ST2).
8). As described above, according to the above-described embodiment, it is possible to select and cancel only the operation desired by the user while the user is simultaneously performing the original image input operation and the image printing operation.

[0067]

As described above in detail, according to the present invention,
It is possible to provide an image forming apparatus capable of selecting and stopping only the operation desired by the user while the user is simultaneously performing the original image input operation and the image printing operation.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an image forming apparatus according to an embodiment of the present invention.

FIG. 2 is a sectional view showing the overall configuration of the image forming apparatus.

FIG. 3 is a diagram showing a schematic configuration of a keyboard / display device.

FIG. 4 is a diagram showing a schematic configuration of an automatic document feeder.

FIG. 5 is a diagram showing a display example of an input device.

FIG. 6 is a time chart for explaining execution states of a document image input operation and an image printing operation.

FIG. 7 is a flowchart for explaining a document image input operation and an image printing operation in the image forming apparatus.

FIG. 8 is a flowchart for explaining a document image input operation and an image printing operation in the image forming apparatus.

[Explanation of symbols]

 1 ... Image forming device 2 ... Central control circuit 3 ... Keyboard / display device 4 ... Image storage device 6 ... Start key 7 ... Input device 7a ... Copy stop key 7b ... Original input stop key 10 ... Image input device 20 ... Image printing device 70 ... Automatic document feeder

Claims (5)

[Claims] 1. A reading unit for reading an image of a document to generate an image signal, a storage unit for storing the image signal generated by the reading unit, and an image according to the image signal stored in the storage unit. An image forming means for forming an image on a carrier, and a state in which the reading operation and the image forming operation are simultaneously executed in a series of operations from the reading operation by the reading means to the image forming operation of the image forming means is included. And a means for stopping only one of the reading operation and the image forming operation while the reading operation and the image forming operation are simultaneously executed by the control means. An image forming apparatus characterized by the above. 2. A reading unit for reading an image of a document to generate an image signal, a storage unit for storing the image signal generated by the reading unit, and an image according to the image signal stored in the storage unit. An image forming means for forming an image on a carrier, and a state in which the reading operation and the image forming operation are simultaneously executed in a series of operations from the reading operation by the reading means to the image forming operation of the image forming means is included. An image forming apparatus comprising: a control unit that operates so as to operate, a first stop unit that stops only the reading operation, and a second stop unit that stops only the image forming operation. 3. A reading unit for reading an image of a document to generate an image signal, a storage unit for storing the image signal generated by the reading unit, and an image according to the image signal stored in the storage unit. An image forming means for forming an image on a carrier, and a state in which the reading operation and the image forming operation are simultaneously executed in a series of operations from the reading operation by the reading means to the image forming operation of the image forming means is included. When the image forming operation is stopped by the second stopping means, the first stopping means for stopping the reading operation, the second stopping means for stopping the image forming operation. Alternatively, the image forming apparatus includes: a deleting unit that deletes the image information stored in the storage unit when the reading operation is stopped by the first stopping unit. 4. An image input device for reading an image of a document, an image storage device for storing the image information read by the image input device, and image data printed by reading the image information stored in the image storage device. An image printing device, a copy stop key for stopping the image printing operation of the image printing device, an original input stop key for stopping the reading operation of the image input device, and the image display when the original input stop key is pressed. When the reading operation of the input device is stopped, the image information read by the image input device stored in the image storage device is deleted, and when the copy stop key is pressed, the image printing operation of the image printing device is stopped. And a central control circuit for performing control to cancel the image information read out for printing the image by the image printing device from the image storage device, and Image forming apparatus to be used. 5. An image of a document is read to generate an image signal, the generated image signal is stored, an image is formed on an image carrier according to the stored image signal, and the image of the document is read. In a series of operations from a reading operation for generating an image signal to an image forming operation for forming an image in response to the image signal, the reading operation and the image forming operation are performed at the same time. A method having a step of stopping only one of the reading operation and the image forming operation while the reading operation and the image forming operation are simultaneously executed.